Fe contains (#145)

* Contains should take three arguments (root, key, value)

* Add a test for frontend Dictionaries

* Separate frontend and middleware operations

* Make tests pass: add arg to contains

* Cargo fmt

* Merkleproof verify circuit (#143)

* merkletree: add keypath circuit

* merkletree-circuit: implement proof of existence verification in-circuit

* parametrize max_depth at the tree circuit

* Constrain selectors in-circuit

* implement merketree nonexistence proof circuit, and add edgecase tests

* add non-existence proofs documentation in the mdbook, mv EMPTY->EMPTY_VALUE & NULL->EMPTY_HASH, dependency clean and public exposure methods

* review comments, some extra polishing and add a test that expects wrong proofs to fail

* Add circuit to check only merkleproofs-of-existence

With this, the merkletree_circuit module offers two different circuits:
- `MerkleProofCircuit`: allows to verify both proofs of existence and proofs
non-existence with the same circuit.
- `MerkleProofExistenceCircuit`: allows to verify proofs of existence only.

In this way, if only proofs of existence are needed,
`MerkleProofExistenceCircuit` should be used, which requires less amount
of constraints than `MerkleProofCircuit`.

* Code review

---------

Co-authored-by: Ahmad <root@ahmadafuni.com>

* Towards Contains/NotContains in middleware and backend

* Fix build

* Adding error handling to deal with op compile introduce extra ops

* Incorporate Merkle proofs into MockMainPod

* Merkleproof verify circuit (#143)

* merkletree: add keypath circuit

* merkletree-circuit: implement proof of existence verification in-circuit

* parametrize max_depth at the tree circuit

* Constrain selectors in-circuit

* implement merketree nonexistence proof circuit, and add edgecase tests

* add non-existence proofs documentation in the mdbook, mv EMPTY->EMPTY_VALUE & NULL->EMPTY_HASH, dependency clean and public exposure methods

* review comments, some extra polishing and add a test that expects wrong proofs to fail

* Add circuit to check only merkleproofs-of-existence

With this, the merkletree_circuit module offers two different circuits:
- `MerkleProofCircuit`: allows to verify both proofs of existence and proofs
non-existence with the same circuit.
- `MerkleProofExistenceCircuit`: allows to verify proofs of existence only.

In this way, if only proofs of existence are needed,
`MerkleProofExistenceCircuit` should be used, which requires less amount
of constraints than `MerkleProofCircuit`.

* Code review

---------

Co-authored-by: Ahmad <root@ahmadafuni.com>

* Towards Contains/NotContains in middleware and backend

* Frontend compound types -- allow one frontend operation to produce multiple middleware statements (in progress)

* Incorporate Merkle proofs into MockMainPod

* Incorporate Merkle proof op arg into frontend

* Compile one statement to many, in progress

* Fix remaining tests

* Minor clean-up

* Oops I did a bunch of work in the middle of a rebase, committing

* Incorporate Merkle proof op arg into frontend

* still working on frontend compound types, refactor compile() to output multiple statements

* Contains statements for frontend types: code compiles

* Tests pass

* Examples use front-end compound types

* Remove old Contains and NotContains from frontend

* Add nin to typos

* Code review

---------

Co-authored-by: arnaucube <git@arnaucube.com>
Co-authored-by: Ahmad <root@ahmadafuni.com>

src/frontend/serialization.rs

@@ -151,6 +151,8 @@ pub fn transform_value_schema(schema: &mut Schema) {
 
 #[cfg(test)]
 mod tests {
+    use anyhow::Result;
+
     use crate::{
         backends::plonky2::mock::{mainpod::MockProver, signedpod::MockSigner},
         examples::{zu_kyc_pod_builder, zu_kyc_sign_pod_builders},
@@ -260,11 +262,13 @@ mod tests {
     }
 
     #[test]
-    fn test_main_pod_serialization() {
+    fn test_main_pod_serialization() -> Result<()> {
         let params = middleware::Params::default();
+        let sanctions_values = vec!["A343434340".into()];
+        let sanction_set = Value::Set(Set::new(sanctions_values)?);
 
         let (gov_id_builder, pay_stub_builder, sanction_list_builder) =
-            zu_kyc_sign_pod_builders(&params);
+            zu_kyc_sign_pod_builders(&params, &sanction_set);
         let mut signer = MockSigner {
             pk: "ZooGov".into(),
         };
@@ -289,9 +293,8 @@ mod tests {
 
         assert_eq!(kyc_pod.public_statements, deserialized.public_statements);
         assert_eq!(kyc_pod.pod.id(), deserialized.pod.id());
-        assert_eq!(
-            kyc_pod.pod.verify().is_ok(),
-            deserialized.pod.verify().is_ok()
-        );
+        assert_eq!(kyc_pod.pod.verify()?, deserialized.pod.verify()?);
+
+        Ok(())
     }
 }